Gaya APA
Agustian, D, A, G.
(2016).
ESQ Emotional Spiritual Quotient
.
Jakarta:
PT. Arga Tilanta.
Gaya MLA
Agustian, Dr.(H.C.), Ary, Ginanjar.
"ESQ Emotional Spiritual Quotient".
Jakarta:
PT. Arga Tilanta,
2016.
Buku.